Fear is a natural thing in my opinion where they will always feel anxious, especially when they first invest it will feel very very afraid of losing money.
But there is a difference between saving to save and saving in investment assets, this is a different concept where they will always be better off saving money because they feel that they are safe and the amount does not decrease but if they save in assets such as Crypto, Bitcoin or stocks people who do not understand their knowledge will be very afraid of losing money because the market moves fluctuate and what's worse is that they don't know that saving in fiat is far worse than an investment asset.
Not talking about success or not success but talking about whether or not they will survive the evil of FIAT.
I like that idea, without knowing that the value of money get lesser even you are not touching it due to inflation though the amount still the same but the value is not, if you understand how inflation works for sure you'll find ways to learn more about saving with investment, finding which assets will allow you to grow your money while you are keeping it.
More on understanding both the risk and potential as you will allow yourself to keep being positive if ever you take part in an investment that you pick to place your save money.